US 12,070,730 B1
Gas mixing and product production systems and methods
Jeffrey Grill, Cypress, CA (US)
Assigned to Stearns, Conrad and Schmidt, Consulting Engineers, Inc., Reston, VA (US)
Filed by Stearns, Conrad and Schmidt, Consulting Engineers, Inc., Reston, VA (US)
Filed on Feb. 24, 2023, as Appl. No. 18/174,026.
Int. Cl. B01F 35/00 (2022.01); B01F 23/10 (2022.01); B01F 35/221 (2022.01); B01F 35/71 (2022.01)
CPC B01F 35/714 (2022.01) [B01F 23/191 (2022.01); B01F 35/2211 (2022.01); B01F 35/718051 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method of mixing gases, the method comprises:
providing a gas mixing system, said gas mixing system comprising: a first gas inlet configured to accept a first gas having a first pressure and a first flow rate; a second gas inlet configured to accept a second gas having a second pressure and a second flow rate; and a discharge gas outlet configured to evacuate a discharge gas from said gas mixing system; and
operating said gas mixing system in a plurality of modes of operation to produce said discharge gas, comprising:
in a first mode of operation, wherein said first flow rate of said first gas is greater than said second flow rate of said second gas, and wherein said first pressure of said first gas is greater than said second pressure of said second gas, said first gas entraining said second gas in said mixing system to mix said first gas with said second gas to produce said discharge gas comprising a mixture of said first gas and said second gas; and
in a second mode of operation, wherein said second flow rate of said second gas is greater than said first flow rate of said first gas, and said first flow rate of said first gas in said second mode of operation is lesser than said first flow rate of said first gas in said first mode of operation; and said second pressure of said second gas is greater in said second mode of operation relative to said second pressure of said second gas in said first mode of operation;
wherein said method comprises one or more selected from the group consisting of:
at least a portion of said first gas is derived from a source of biogas;
at least a portion of said second gas is derived from said source of biogas;
at least a portion of said discharge gas is used to produce at least a portion of said first gas;
at least a portion of said discharge gas is used to produce at least a portion of said second gas; and
at least a portion of said discharge gas is used to produce a biogas-related product, said biogas-related product includes one or more products selected from the group consisting of renewable natural gas, a chemical, dimethyl ether, ethanol, Fischer-Tropsch product, hydrogen, methanol, mixed alcohols, an alcohol, 1-butanol, 2-butanol, jet fuel, gasoline, a liquid fuel, diesel, and power.